On irregular nonlinear waves in a spread sea
Optimal design and reassessment of offshore structures requires a good understanding of the ocean environment. The motion of the sea surface can be viewed as a three-dimensionaL nonlinear stochastic process in time. In order to characterize the wave environment adequately, we need to model its rando...
| Published in: | Journal of Offshore Mechanics and Arctic Engineering |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
1997
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| Subjects: | |
| Online Access: | https://eprints.lancs.ac.uk/id/eprint/133103/ https://doi.org/10.1115/1.2829043 |
| Summary: | Optimal design and reassessment of offshore structures requires a good understanding of the ocean environment. The motion of the sea surface can be viewed as a three-dimensionaL nonlinear stochastic process in time. In order to characterize the wave environment adequately, we need to model its random, nonlinear, and spread nature. In this paper, we address: · the expected shape of a wave near a crest or trough, · the expected shape of the ocean surface at one point, given a crest at a different point, · an efficient method to incorporate nonlinear effects within linear wave simulations, · the magnitude of wave nonlinearity as a function of wave amplitude. Detailed comparison of theory and full-scale offshore measurements at the Shell Expro Tern platform show. © 1997 by ASME. |
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